Columbia: Wool Educational Material for the Clothing Industry
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The educational information listed in this section has graciously been provided by the American Sheep Industry Association

Dual Purpose Breeds: Columbia

MATURE BODY WEIGHT

Ram 250-350 lb.
Ewe 160-240 lb.

AVERAGE fiber DIAMETER

Micron 29-23
Spinning Count 62-54

GREASE FLEECE WEIGHT

Ewe 12-16 lb.

YIELD

45-55%

STAPLE LENGTH

4-6"

Columbia was the first breed developed in the U.S. beginning in 1912 from Lincoln x Rambouillet crosses. Columbias are a hardy and gregarious breed and make good mothers. They are one of the larger-sized breeds in the U.S., have white faces with wool extending down the legs and are increasingly used as terminal sires to produce fast growing lean market lambs. They yield heavy, medium-wool fleeces with good staple length.

Registrations - Previous five year average, 6,115

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